[Urologic complications after kidney transplantation. Experiences in a center with 539 recipients].

A total of 539 renal transplantations were performed at the Department of Urology of the University Hospital of Hamburg between 1984 and 1991. 132 (24.5%) patients developed urological complications (by definition, complications occurring as a result of the operative procedure). In 31 cases the transplants had to be removed secondary to urological complications, and 4 patients died of such complications (mortality 0.7%, lethality 3.0%). Urinary tract infections occurred in 13.2% of all patients during the first postoperative year and were by far the most frequent complication, followed by haematomas, which occurred in 9.6%. The incidence of urinary tract and wound infections was significantly reduced during the 8-year period studied by improving antibiotic prophylaxis and adopting a strategy of early removal of indwelling catheters (P < 0.05). Stenting the ureteroneocystostomy with a double-J stent instead of an external ureteral catheter resulted in a definite decrease in the incidence of ureteral leaks (P < 0.05). Continuous control of operative results and efforts to improve operative and perioperative strategies make it possible to reduce the incidence of urological complications in renal transplantation and thus result in an improved graft function and patient survival.